The Chong Jargylchak (Kyrgyz: Чоң Жаргылчак, Russian: Чон Джаргылчак) is a river in Jeti-Ögüz District of Issyk-Kul Region of Kyrgyzstan.

It rises on north slopes of Teskey Ala-Too Range and flows into lake Issyk-Kul.

The length of the river is 25 km (16 mi) and the basin area 137 square kilometres (53 sq mi).

[1] According to recent study conducted by Central-Asian Institute for Applied Geosciences the average annual discharge of the river increased to 3.32 m3/s (117 cu ft/s) (at gauging station Chong Jargylchak) over the period of 1994–2016, which is 153% higher than during monitoring period from 1940 to 1993, i.e. 2.16 m3/s (76 cu ft/s) due to climate change factors.

This article related to a river in Kyrgyzstan is a stub.